CVE-2026-22605 OpenProject is Vulnerable to Insecure Direct Object Reference in Meetings

What is CVE-2026-22605?

CVE-2026-22605 is a medium-severity missing authorization vulnerability in opf openproject, published on 10 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenProject is an open-source, web-based project management software. OpenProject versions prior to version 16.6.3, allowed users with the View Meetings permission on any project, to access meeting details of meetings that belonged to projects, the user does not have access to. This issue has been patched in version 16.6.3.

Weakness: CWE-284

Which versions are affected by CVE-2026-22605?

It affects 1 product.

Products include Openproject Openproject.

How do I fix CVE-2026-22605?

No fix has been published for CVE-2026-22605 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-22605 being exploited?

There is no known exploitation of CVE-2026-22605 in the wild and no public exploit code.

Other vulnerabilities in opf openproject

• CVE-2026-34717 OpenProject: SQL Injection in Cost Reporting =n Operator via parse_number_string Critical 9.9
• CVE-2026-25763 Command Injection on OpenProject repositories leads to Remote Code Execution Critical 9.4
• CVE-2026-24685 OpenProject has Argument Injection on Repository module that allows Arbitrary File Write Critical 9.4
• CVE-2026-32698 OpenProject has a SQL Injection via Custom Field Name that can be chained to Remote Code Execution Critical 9.1
• CVE-2026-32703 OpenProject's repository files are served with the MIME type allowing them to be used to bypass Content Security Policy Critical 9.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-fq4m-pxvm-8x2j.